I've always had this fear that there was a hand living in every toilet, and that whenever you were using it, it would come up and pull you down, taking your hands for the next toilet. I'm 14 now and still check all toilets before and during.
A childhood belief about fear of

others believed things like this
- i used to believe that scoripons could crawl up your toilet and pull you in.
No thanks to my big brother!— Alexandra - My brother (who was 6 at the time) would never flush the toilet in fear of our new house being blown up! Anon
- I thought there was a beaver living in the toilet that would bite me if I wasn't ever vigilant. — Camille
- I thought that toilet paper was bread and by puting it it the toilet i was feeding the ducks at the bottem.— Gringo
- I used to believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- I used to believe that if I flushed the toilet before I showered, I would take a shower in dirty toilet water.— Chris D